Trowel



B. J. PARKER.

TRowEL APPLICATION FILED OC T.21 1917. I 1,382,232, Patented Mar. 2,1920.

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B. J. PARKER.

TROWEL.

APPLICATION FILED ocT.2. 19u.

1,382,232, Patented Mm'. 2, 1920.

2 SHEETS-SHEET 2.

i CTD fix- BY If A TORNEY5 BARTON J. PARKER, 0F HOUSTON, TEXAS.

TROWEL.

Specification of Letters Patent.

Patented Mar. 2, 1920.

Application filed October 2, 1917'. Serial No. 194,329.

specially designed for applying plastic material in the formation ofstructures formed of concrete or other similar material and havinghollow walls. The trowel may also be used in the formation ofwainscoting and finishing and in fact wherever it is necessary to applyplastic material in the construction of a wall, vessel or otherstructure.

Another feature resides in the provision of an implement whereby theplastic material may be applied in a smooth and uniform layer to thelathing, studding or other framework.

A further feature of the invention resides in the provision of a trowelto which the plastic material, to be applied, is delivered by means ofcontrollable fluid pressure.

A still further feature resides in the provision of a trowel which isspecially designed for use in the construction of boats and water craftformed of concrete or other similar material and having curved Walls orsides.

With the above and other objects in view, the invention has particularrelation to certain novel features of construction, operation and use,an example of which is given in this specification and illustrated inthe accompanying drawings, wherein Figure 1 is a side elevation of thecomplete device.

Fig. 2 is an edge view thereof.

Fig. 3 is a transverse sectional view taken on the line 3 3 of Fig. 5.

Fig. 4 is a top plan view of the trowel proper.

Fig. 5 is a fragmentary transverse sectional view of the device.

Fig. 6 is a fragmentary sectional view thereof, taken on the line 6-6 ofFig. 5.

Fig. 7 is a side view of a modified form of the trowel designed to beused in constructingI curved walls.

Fig. 8 is an edge view of said modified form, and

Figs. 9 and 10 are fragmentary vertical sectional views thereof.

Referring now more particularly to the drawings wherein like numerals ofreference designate similar parts in each of the figures, the numeral 1designates a container provided with a covering 2 and Xed in the upperpart of which is a hopper 3 which is provided to receive a quantity ofplastic material. The hopper has an outwardly flared discharge openingwhich is controlled by a correspondingly flared valve 4. This valve ispivoted to the inner end of a lever 5 which in turn is pivoted to thebail 6 bv means of which the container is supported. The remainder ofthe container has an upstanding arm 7 whose upper end 8 is bent over andreceives the set screw 9 which is threaded therethrough. When the outerend of the lever 5 is engaged under said screw, the valve 4 is heldtightly closed. When it is desired to open the valve, the outer end ofsaid lever may 'be disengaged and elevated, which will operate to lowerthe valve and permit the discharge of the plastic material from thehopper 3 down into the container 1. The container is provided with anagitator 9 of any desired form which may be manipulated through thecrank 10, so as to overcome the tendency of the material t'o set whilein the container. The numeral 11 refers to the trowel which is formed ofthe required dimensions to fit between the studding 12, 12, and thelathing 13, 13, of the wall framework and is held spaced a uniformdistance from said studding and lathing by means of outwardly projectingfins 14 and l5. The upper part 16 of the tro-wel is reduced and tapersto an apex and fitted thereover but spaced therefrom is the hood 17which is fixed relative to the trowel by means of the oppositelydisposed transverse bridges 18, 18, which are soldered or otherwisesecured to the sloping edges of the trowel and to the sides of the hood17. The upper ends 19, 19, of these bridges are left free and areupwardly turned, thus spacing said free ends apart. The upper part ofthe hood is formed into a neck 20 to which the casing of the valve 21 issecured. A conduit 22 leads from the container 1 and is controlled bysaid valve 21 and discharges the plastic material fromsaid containerthrough the hood 17.

The stem of the valve 21 ,has an operating lever 23 fixed thereon .tothe free ends of which are attached operating cables 24, 24, throughwhich the valve may be opened and closed by means ofthe operating lever25 to which said cables are attached.

.In building a vertical wall, the trowel is let down between thestudding 12 and lathing 13 to the bottom of the wall, as'shown in Figs.1 and 2, the entire device being neck 20 is separated byy the upwardlyturned ends 19, 19, and a part of it diverted toward each end of thetrowel and the remainder thereof passes between said upwardly turnedends and is separated by the apex of the trowel passing on each side ofthe trowel so that a uniform quantity of material will be delivered tothe ends and sides of the trowel and the upwardly turned ends 19 areleft free so that they may be` forced toward each other or spread apart,as desired so as to regulate the quantity of material to be delivered tothe ends and sides respectively, of the trowel. While the material isbeing delivered, the trowel is gradually elevated and as it movesupwardly toward the top of thewall, it is held spaced froml the studdingand lathing Iby the fins 11 and 15 and a sufficient quantity isdelivered so that it will entirely fill the space between the trowel andthe studding and lathing and will be forced through the reticulatedstudding and lathing and" may then be smoothed by the ordinary 'handtrowel applied to the outside of the Wall, thus forming a smooth outerfinish as 27 so that when the wall is completed the studding and lathingwill be completely in'- cased inl plastic material, which when ithardens will form a monolithic structure.

In order to prevent the clogging of the material in the conduit 22, Ihave` provided fluid pressure conduits 28 and 29 which lead from thepipe 26, are controlled by the rethe conduit 22 will preferably beformed of v a flexible hose or ipe and the container -1 swung from astatlonary support.

This form of trowel is also specially adapted for use in theconstruction of boats yand water craft built of concrete and othersimilar material. Inasmuch however as the walls of watercraft arecurved, the trowel 11 has been formed of sections jointed together, asshown in Figs. 9l and 10 to permit a certain amount of flexibility sothat in applying the material, the trowel will readily follow the curvedcontour of the wall, as shown in Fig. 8.

What I claim is:

1. A device for applying mortar to the curved walls of ships and thelike comprising an elongated flexible trowel, said trowel being formedof sections hinged together having substantially flat parallel sidefaces, a conduit communicating ,with the exterior of said sectionsthrough which plastic material is delivered into the path of saidsections and means on both side faces of said sections for spacing saidsections from the walls duit communicating with the exterior of saidtrowel through which plastic material is delivered to the space betweensaid wall and said side faces, said trowel being fiexible throughout itsentire length to accommodate said trowel to the curvature of spacedcurved Walls. v In testimony whereof I have signed my name to thisspecification in the presence of two subscribing witnesses.

BARTON J. PARKER. Witnesses:

E. V. HARDWAY, FLORENCE JOHNSTON.

